Search for D 0-D̄ 0 Mixing in D 0 → K + π - decays and measurement of the doubly-cabibbo-suppressed decay rate

J. Li; Z. P. Zhang; A. J. Schwartz; K. Abe; K. Abe; H. Aihara; M. Akatsu; Y. Asano; T. Aushev; A. M. Bakich; A. Bay; I. Bedny; U. Bitenc; I. Bizjak; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; Y. Chao; A. Chen; K. F. Chen; W. T. Chen; B. G. Cheon; R. Chistov; S. K. Choi; Y. Choi; A. Chuvikov; S. Cole; J. Dalseno; M. Danilov; M. Dash; L. Y. Dong; A. Drutskoy; S. Eidelman; V. Eiges; Y. Enari; F. Fang; S. Fratina; N. Gabyshev; A. Garmash; T. Gershon; G. Gokhroo; J. Haba; K. Hayasaka; H. Hayashii; M. Hazumi; T. Higuchi; T. Hokuue; H. Hoshi; S. Hou; W. S. Hou; T. Iijima; A. Imoto; K. Inami; R. Itoh; M. Iwasaki; Y. Iwasaki; J. H. Kang; J. S. Kang; S. U. Kataoka; N. Katayama; H. Kawai; T. Kawasaki; H. R. Khan; J. H. Kim; S. K. Kim; K. Kinoshita; P. Krokovny; R. Kulasiri; C. C. Kuo; Y. J. Kwon; L. S. Lange; G. Leder; S. H. Lee; T. Lesiak; A. Limosani; S. W. Lin; D. Liventsev; J. MacNaughton; G. Majumder; F. Mandl; T. Matsumoto; A. Matyja; W. Mitaroff; H. Miyata; R. Mizuk; D. Mohapatra; T. Mori; T. Nagamine; Y. Nagasaka; T. Nakadaira; E. Nakano; S. Nishida; O. Nitoh; S. Ogawa; T. Ohshima; S. L. Olsen; S. Stanič

doi:10.1103/PhysRevLett.94.071801

Search for D ⁰-D̄ ⁰ Mixing in D ⁰ → K ⁺ π ^- decays and measurement of the doubly-cabibbo-suppressed decay rate

J. Li, Z. P. Zhang, A. J. Schwartz, K. Abe, K. Abe, H. Aihara, M. Akatsu, Y. Asano, T. Aushev, A. M. Bakich, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, Y. ChaoA. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, T. Higuchi, T. Hokuue, H. Hoshi, S. Hou, W. S. Hou, T. Iijima, A. Imoto, K. Inami, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, J. H. Kim, S. K. Kim, K. Kinoshita, P. Krokovny, R. Kulasiri, C. C. Kuo, Y. J. Kwon, L. S. Lange, G. Leder, S. H. Lee, T. Lesiak, A. Limosani, S. W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyata, R. Mizuk, D. Mohapatra, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. L. Olsen, S. Stanič

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

We have searched for mixing in the D ⁰-D̄ ⁰ system by measuring the decay-time distribution of D ⁰ → K ⁺ π ^- decays. The analysis uses 90 fb ^-1 of data collected by the Belle detector at the KEKB e ⁺e ^- collider. We fit the decay-time distribution for the mixing parameters x′ and y′ and also for the parameter R _D, which is the ratio of the rate for the doubly-Cabibbo-suppressed decay D ⁰→ K ⁺ π ^- to that for the Cabibbb-favored decay D ⁰ → K ^- π ⁺. We do these fits both assuming CP conservation and allowing for CP violation. We use a frequentist method to obtain a 95% C.L. region in the x ^′2-y′ plane. Assuming no mixing, we measure R _D = (0.381 ± 0.017 _-0.016 ^+0.008)%.

Original language	English
Article number	071801
Journal	Physical review letters
Volume	94
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.94.071801
Publication status	Published - 2005 Feb 25
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.94.071801

Cite this

Li, J., Zhang, Z. P., Schwartz, A. J., Abe, K., Abe, K., Aihara, H., Akatsu, M., Asano, Y., Aushev, T., Bakich, A. M., Bay, A., Bedny, I., Bitenc, U., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., ... Stanič, S. (2005). Search for D ⁰-D̄ ⁰ Mixing in D ⁰ → K ⁺ π ^- decays and measurement of the doubly-cabibbo-suppressed decay rate. Physical review letters, 94(7), [071801]. https://doi.org/10.1103/PhysRevLett.94.071801

Li, J, Zhang, ZP, Schwartz, AJ, Abe, K, Abe, K, Aihara, H, Akatsu, M, Asano, Y, Aushev, T, Bakich, AM, Bay, A, Bedny, I, Bitenc, U, Bizjak, I, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chao, Y, Chen, A, Chen, KF, Chen, WT, Cheon, BG, Chistov, R, Choi, SK, Choi, Y, Chuvikov, A, Cole, S, Dalseno, J, Danilov, M, Dash, M, Dong, LY, Drutskoy, A, Eidelman, S, Eiges, V, Enari, Y, Fang, F, Fratina, S, Gabyshev, N, Garmash, A, Gershon, T, Gokhroo, G, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Higuchi, T, Hokuue, T, Hoshi, H, Hou, S, Hou, WS, Iijima, T, Imoto, A, Inami, K, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kang, JS, Kataoka, SU, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kim, JH, Kim, SK, Kinoshita, K, Krokovny, P, Kulasiri, R, Kuo, CC, Kwon, YJ, Lange, LS, Leder, G, Lee, SH, Lesiak, T, Limosani, A, Lin, SW, Liventsev, D, MacNaughton, J, Majumder, G, Mandl, F, Matsumoto, T, Matyja, A, Mitaroff, W, Miyata, H, Mizuk, R, Mohapatra, D, Mori, T, Nagamine, T, Nagasaka, Y, Nakadaira, T, Nakano, E, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Olsen, SL & Stanič, S 2005, 'Search for D ⁰-D̄ ⁰ Mixing in D ⁰ → K ⁺ π ^- decays and measurement of the doubly-cabibbo-suppressed decay rate', Physical review letters, vol. 94, no. 7, 071801. https://doi.org/10.1103/PhysRevLett.94.071801

@article{809e18cc93264ef880a0422ab665628c,

title = "Search for D 0-{\=D} 0 Mixing in D 0 → K + π - decays and measurement of the doubly-cabibbo-suppressed decay rate",

abstract = "We have searched for mixing in the D 0-{\=D} 0 system by measuring the decay-time distribution of D 0 → K + π - decays. The analysis uses 90 fb -1 of data collected by the Belle detector at the KEKB e +e - collider. We fit the decay-time distribution for the mixing parameters x′ and y′ and also for the parameter R D, which is the ratio of the rate for the doubly-Cabibbo-suppressed decay D 0→ K + π - to that for the Cabibbb-favored decay D 0 → K - π +. We do these fits both assuming CP conservation and allowing for CP violation. We use a frequentist method to obtain a 95% C.L. region in the x ′2-y′ plane. Assuming no mixing, we measure R D = (0.381 ± 0.017 -0.016 +0.008)%.",

author = "J. Li and Zhang, {Z. P.} and Schwartz, {A. J.} and K. Abe and K. Abe and H. Aihara and M. Akatsu and Y. Asano and T. Aushev and Bakich, {A. M.} and A. Bay and I. Bedny and U. Bitenc and I. Bizjak and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and Browder, {T. E.} and Y. Chao and A. Chen and Chen, {K. F.} and Chen, {W. T.} and Cheon, {B. G.} and R. Chistov and Choi, {S. K.} and Y. Choi and A. Chuvikov and S. Cole and J. Dalseno and M. Danilov and M. Dash and Dong, {L. Y.} and A. Drutskoy and S. Eidelman and V. Eiges and Y. Enari and F. Fang and S. Fratina and N. Gabyshev and A. Garmash and T. Gershon and G. Gokhroo and J. Haba and K. Hayasaka and H. Hayashii and M. Hazumi and T. Higuchi and T. Hokuue and H. Hoshi and S. Hou and Hou, {W. S.} and T. Iijima and A. Imoto and K. Inami and R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {J. H.} and Kang, {J. S.} and Kataoka, {S. U.} and N. Katayama and H. Kawai and T. Kawasaki and Khan, {H. R.} and Kim, {J. H.} and Kim, {S. K.} and K. Kinoshita and P. Krokovny and R. Kulasiri and Kuo, {C. C.} and Kwon, {Y. J.} and Lange, {L. S.} and G. Leder and Lee, {S. H.} and T. Lesiak and A. Limosani and Lin, {S. W.} and D. Liventsev and J. MacNaughton and G. Majumder and F. Mandl and T. Matsumoto and A. Matyja and W. Mitaroff and H. Miyata and R. Mizuk and D. Mohapatra and T. Mori and T. Nagamine and Y. Nagasaka and T. Nakadaira and E. Nakano and S. Nishida and O. Nitoh and S. Ogawa and T. Ohshima and Olsen, {S. L.} and S. Stani{\v c}",

year = "2005",

month = feb,

day = "25",

doi = "10.1103/PhysRevLett.94.071801",

language = "English",

volume = "94",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "7",

}

TY - JOUR

T1 - Search for D 0-D̄ 0 Mixing in D 0 → K + π - decays and measurement of the doubly-cabibbo-suppressed decay rate

AU - Li, J.

AU - Zhang, Z. P.

AU - Schwartz, A. J.

AU - Abe, K.

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Bay, A.

AU - Bedny, I.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S. K.

AU - Choi, Y.

AU - Chuvikov, A.

AU - Cole, S.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Dong, L. Y.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Eiges, V.

AU - Enari, Y.

AU - Fang, F.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Higuchi, T.

AU - Hokuue, T.

AU - Hoshi, H.

AU - Hou, S.

AU - Hou, W. S.

AU - Iijima, T.

AU - Imoto, A.

AU - Inami, K.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kim, J. H.

AU - Kim, S. K.

AU - Kinoshita, K.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kuo, C. C.

AU - Kwon, Y. J.

AU - Lange, L. S.

AU - Leder, G.

AU - Lee, S. H.

AU - Lesiak, T.

AU - Limosani, A.

AU - Lin, S. W.

AU - Liventsev, D.

AU - MacNaughton, J.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Matyja, A.

AU - Mitaroff, W.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mohapatra, D.

AU - Mori, T.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakadaira, T.

AU - Nakano, E.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Olsen, S. L.

AU - Stanič, S.

PY - 2005/2/25

Y1 - 2005/2/25

N2 - We have searched for mixing in the D 0-D̄ 0 system by measuring the decay-time distribution of D 0 → K + π - decays. The analysis uses 90 fb -1 of data collected by the Belle detector at the KEKB e +e - collider. We fit the decay-time distribution for the mixing parameters x′ and y′ and also for the parameter R D, which is the ratio of the rate for the doubly-Cabibbo-suppressed decay D 0→ K + π - to that for the Cabibbb-favored decay D 0 → K - π +. We do these fits both assuming CP conservation and allowing for CP violation. We use a frequentist method to obtain a 95% C.L. region in the x ′2-y′ plane. Assuming no mixing, we measure R D = (0.381 ± 0.017 -0.016 +0.008)%.

AB - We have searched for mixing in the D 0-D̄ 0 system by measuring the decay-time distribution of D 0 → K + π - decays. The analysis uses 90 fb -1 of data collected by the Belle detector at the KEKB e +e - collider. We fit the decay-time distribution for the mixing parameters x′ and y′ and also for the parameter R D, which is the ratio of the rate for the doubly-Cabibbo-suppressed decay D 0→ K + π - to that for the Cabibbb-favored decay D 0 → K - π +. We do these fits both assuming CP conservation and allowing for CP violation. We use a frequentist method to obtain a 95% C.L. region in the x ′2-y′ plane. Assuming no mixing, we measure R D = (0.381 ± 0.017 -0.016 +0.008)%.

UR - http://www.scopus.com/inward/record.url?scp=18144427873&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18144427873&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.94.071801

DO - 10.1103/PhysRevLett.94.071801

M3 - Article

AN - SCOPUS:18144427873

SN - 0031-9007

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

IS - 7

M1 - 071801

ER -

Search for D ⁰-D̄ ⁰ Mixing in D ⁰ → K ⁺ π ^- decays and measurement of the doubly-cabibbo-suppressed decay rate

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